diff options
Diffstat (limited to 'xfa/src/fgas/src/layout/fx_textbreak.h')
| -rw-r--r-- | xfa/src/fgas/src/layout/fx_textbreak.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/xfa/src/fgas/src/layout/fx_textbreak.h b/xfa/src/fgas/src/layout/fx_textbreak.h new file mode 100644 index 0000000000..c5bbc40946 --- /dev/null +++ b/xfa/src/fgas/src/layout/fx_textbreak.h @@ -0,0 +1,171 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef _FX_TEXTBREAK_IMP
+#define _FX_TEXTBREAK_IMP
+class CFX_TxtLine;
+class CFX_Txtbreak;
+class CFX_TxtLine : public CFX_Object
+{
+public:
+ CFX_TxtLine(FX_INT32 iBlockSize) : m_iStart(0)
+ , m_iWidth(0)
+ , m_iArabicChars(0)
+ {
+ m_pLineChars = FX_NEW CFX_TxtCharArray;
+ m_pLinePieces = FXTARGET_New CFX_TxtPieceArray(16);
+ }
+ ~CFX_TxtLine()
+ {
+ RemoveAll();
+ delete m_pLineChars;
+ FXTARGET_Delete m_pLinePieces;
+ }
+ FX_INT32 CountChars() const
+ {
+ return m_pLineChars->GetSize();
+ }
+ CFX_TxtChar* GetCharPtr(FX_INT32 index) const
+ {
+ FXSYS_assert(index > -1 && index < m_pLineChars->GetSize());
+ return m_pLineChars->GetDataPtr(index);
+ }
+ FX_INT32 CountPieces() const
+ {
+ return m_pLinePieces->GetSize();
+ }
+ CFX_TxtPiece* GetPiecePtr(FX_INT32 index) const
+ {
+ FXSYS_assert(index > -1 && index < m_pLinePieces->GetSize());
+ return m_pLinePieces->GetPtrAt(index);
+ }
+ void GetString(CFX_WideString &wsStr) const
+ {
+ FX_INT32 iCount = m_pLineChars->GetSize();
+ FX_LPWSTR pBuf = wsStr.GetBuffer(iCount);
+ CFX_Char *pChar;
+ for (FX_INT32 i = 0; i < iCount; i ++) {
+ pChar = m_pLineChars->GetDataPtr(i);
+ *pBuf ++ = (FX_WCHAR)pChar->m_wCharCode;
+ }
+ wsStr.ReleaseBuffer(iCount);
+ }
+ void RemoveAll(FX_BOOL bLeaveMemory = FALSE)
+ {
+ m_pLineChars->RemoveAll();
+ m_pLinePieces->RemoveAll(bLeaveMemory);
+ m_iWidth = 0;
+ m_iArabicChars = 0;
+ }
+ CFX_TxtCharArray *m_pLineChars;
+ CFX_TxtPieceArray *m_pLinePieces;
+ FX_INT32 m_iStart;
+ FX_INT32 m_iWidth;
+ FX_INT32 m_iArabicChars;
+};
+class CFX_TxtBreak : public IFX_TxtBreak, public CFX_Object
+{
+public:
+ CFX_TxtBreak(FX_DWORD dwPolicies);
+ ~CFX_TxtBreak();
+ virtual void Release()
+ {
+ delete this;
+ }
+ virtual void SetLineWidth(FX_FLOAT fLineWidth);
+ virtual void SetLinePos(FX_FLOAT fLinePos);
+ virtual FX_DWORD GetLayoutStyles() const
+ {
+ return m_dwLayoutStyles;
+ }
+ virtual void SetLayoutStyles(FX_DWORD dwLayoutStyles);
+ virtual void SetFont(IFX_Font *pFont);
+ virtual void SetFontSize(FX_FLOAT fFontSize);
+ virtual void SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant);
+ virtual void SetDefaultChar(FX_WCHAR wch);
+ virtual void SetParagraphBreakChar(FX_WCHAR wch);
+ virtual void SetLineBreakTolerance(FX_FLOAT fTolerance);
+ virtual void SetHorizontalScale(FX_INT32 iScale);
+ virtual void SetVerticalScale(FX_INT32 iScale);
+ virtual void SetCharRotation(FX_INT32 iCharRotation);
+ virtual void SetCharSpace(FX_FLOAT fCharSpace);
+ virtual void SetAlignment(FX_INT32 iAlignment);
+ virtual FX_DWORD GetContextCharStyles() const;
+ virtual void SetContextCharStyles(FX_DWORD dwCharStyles);
+ virtual void SetCombWidth(FX_FLOAT fCombWidth);
+ virtual void SetUserData(FX_LPVOID pUserData);
+ virtual FX_DWORD AppendChar(FX_WCHAR wch);
+ virtual FX_DWORD EndBreak(FX_DWORD dwStatus = FX_TXTBREAK_PieceBreak);
+ virtual FX_INT32 CountBreakChars() const;
+ virtual FX_INT32 CountBreakPieces() const;
+ virtual const CFX_TxtPiece* GetBreakPiece(FX_INT32 index) const;
+ virtual void ClearBreakPieces();
+ virtual void Reset();
+ virtual FX_INT32 GetDisplayPos(FX_LPCTXTRUN pTxtRun, FXTEXT_CHARPOS *pCharPos, FX_BOOL bCharCode = FALSE, CFX_WideString *pWSForms = NULL, FX_AdjustCharDisplayPos pAdjustPos = NULL) const;
+ virtual FX_INT32 GetCharRects(FX_LPCTXTRUN pTxtRun, CFX_RectFArray &rtArray, FX_BOOL bCharBBox = FALSE) const;
+ void AppendChar_PageLoad(CFX_Char *pCurChar, FX_DWORD dwProps);
+ FX_DWORD AppendChar_Combination(CFX_Char *pCurChar, FX_INT32 iRotation);
+ FX_DWORD AppendChar_Tab(CFX_Char *pCurChar, FX_INT32 iRotation);
+ FX_DWORD AppendChar_Control(CFX_Char *pCurChar, FX_INT32 iRotation);
+ FX_DWORD AppendChar_Arabic(CFX_Char *pCurChar, FX_INT32 iRotation);
+ FX_DWORD AppendChar_Others(CFX_Char *pCurChar, FX_INT32 iRotation);
+protected:
+ FX_DWORD m_dwPolicies;
+ FX_BOOL m_bPagination;
+ IFX_ArabicChar *m_pArabicChar;
+ FX_INT32 m_iLineWidth;
+ FX_DWORD m_dwLayoutStyles;
+ FX_BOOL m_bVertical;
+ FX_BOOL m_bArabicContext;
+ FX_BOOL m_bArabicShapes;
+ FX_BOOL m_bRTL;
+ FX_BOOL m_bSingleLine;
+ FX_BOOL m_bCombText;
+ FX_INT32 m_iArabicContext;
+ FX_INT32 m_iCurArabicContext;
+ IFX_Font *m_pFont;
+ FX_INT32 m_iFontSize;
+ FX_BOOL m_bEquidistant;
+ FX_INT32 m_iTabWidth;
+ FX_WCHAR m_wDefChar;
+ FX_WCHAR m_wParagBreakChar;
+ FX_INT32 m_iDefChar;
+ FX_INT32 m_iLineRotation;
+ FX_INT32 m_iCharRotation;
+ FX_INT32 m_iRotation;
+ FX_INT32 m_iAlignment;
+ FX_DWORD m_dwContextCharStyles;
+ FX_INT32 m_iCombWidth;
+ FX_LPVOID m_pUserData;
+ FX_DWORD m_dwCharType;
+ FX_BOOL m_bCurRTL;
+ FX_INT32 m_iCurAlignment;
+ FX_BOOL m_bArabicNumber;
+ FX_BOOL m_bArabicComma;
+ CFX_TxtLine *m_pTxtLine1;
+ CFX_TxtLine *m_pTxtLine2;
+ CFX_TxtLine *m_pCurLine;
+ FX_INT32 m_iReady;
+ FX_INT32 m_iTolerance;
+ FX_INT32 m_iHorScale;
+ FX_INT32 m_iVerScale;
+ FX_INT32 m_iCharSpace;
+ void SetBreakStatus();
+ FX_INT32 GetLineRotation(FX_DWORD dwStyles) const;
+ CFX_TxtChar* GetLastChar(FX_INT32 index, FX_BOOL bOmitChar = TRUE) const;
+ CFX_TxtLine* GetTxtLine(FX_BOOL bReady) const;
+ CFX_TxtPieceArray* GetTxtPieces(FX_BOOL bReady) const;
+ FX_DWORD GetUnifiedCharType(FX_DWORD dwType) const;
+ void ResetArabicContext();
+ void ResetContextCharStyles();
+ void EndBreak_UpdateArabicShapes();
+ FX_BOOL EndBreak_SplitLine(CFX_TxtLine *pNextLine, FX_BOOL bAllChars, FX_DWORD dwStatus);
+ void EndBreak_BidiLine(CFX_TPOArray &tpos, FX_DWORD dwStatus);
+ void EndBreak_Alignment(CFX_TPOArray &tpos, FX_BOOL bAllChars, FX_DWORD dwStatus);
+ FX_INT32 GetBreakPos(CFX_TxtCharArray &ca, FX_INT32 &iEndPos, FX_BOOL bAllChars = FALSE, FX_BOOL bOnlyBrk = FALSE);
+ void SplitTextLine(CFX_TxtLine *pCurLine, CFX_TxtLine *pNextLine, FX_BOOL bAllChars = FALSE);
+};
+#endif
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